{"icao":"KRST","name":"Rochester International Airport","lat":43.9083,"lon":-92.5,"country":"US","tz":"America/Chicago","updated":"2026-09-04T14:25Z","window":{"start":"2016-01-01","through":"2026-08-15"},"climatology":{"subCat1HoursPerYear":86,"bandDefinition":"visibility < ~800 m OR ceiling < 200 ft","fogSeasonPeakMonths":["December","January"],"monthlyHours":[16,10,9,5,2,1,5,5,5,3,6,19],"medianEventHours":2,"season":{"summary":"Fog season is January, February, March, April, July, August, September, November, December, peaking in December; fog is mostly a 3 AM\u20138 AM phenomenon; typically thinning out by 11 AM; a typical event lasts about 2 hours (local time, 10-year average).","months":["January","February","March","April","July","August","September","November","December"],"timeOfDay":"3 AM\u20138 AM","typicallyClearsBy":"11 AM"}},"forecast":{"covered":true,"public":true,"cycle":"2026-09-04T13:00:00Z","peakPct":21,"peakAtLocal":"2026-09-05T07:00:00-05:00","wording":"Some chance of fog: the calibrated forecast peaks at 21% (visibility under 1 mile) around 7 am Saturday."},"links":{"page":"https://fogatlas.org/fog/krst/","liveForecastApi":"https://fogatlas.org/api/forecast","liveObservationsApi":"https://fogatlas.org/api/metar?ids=KRST","hourlyClimatologyDetail":"https://fogatlas.org/data/detail/KRST.json","verification":"https://fogatlas.org/fog/scorecard/","methodology":"https://fogatlas.org/#methodology"}}